/*
* Parse Event header.
*/
static pjsip_hdr *parse_hdr_event(pjsip_parse_ctx *ctx)
{
pjsip_event_hdr *hdr = pjsip_event_hdr_create(ctx->pool);
const pj_str_t id_param = { "id", 2 };
const pjsip_parser_const_t *pc = pjsip_parser_const();
pj_scan_get(ctx->scanner, &pc->pjsip_TOKEN_SPEC, &hdr->event_type);
while (*ctx->scanner->curptr == ';') {
pj_str_t pname, pvalue;
pj_scan_get_char(ctx->scanner);
pjsip_parse_param_imp(ctx->scanner, ctx->pool, &pname, &pvalue, 0);
if (pj_stricmp(&pname, &id_param)==0) {
hdr->id_param = pvalue;
} else {
pjsip_param *param = PJ_POOL_ALLOC_T(ctx->pool, pjsip_param);
param->name = pname;
param->value = pvalue;
pj_list_push_back(&hdr->other_param, param);
}
}
pjsip_parse_end_hdr_imp( ctx->scanner );
return (pjsip_hdr*)hdr;
}
/*
* Parse Session-Expires header.
*/
static pjsip_hdr *parse_hdr_se(pjsip_parse_ctx *ctx)
{
pjsip_sess_expires_hdr *hdr = pjsip_sess_expires_hdr_create(ctx->pool);
const pjsip_parser_const_t *pc = pjsip_parser_const();
pj_str_t token;
pj_scan_get(ctx->scanner, &pc->pjsip_DIGIT_SPEC, &token);
hdr->sess_expires = pj_strtoul(&token);
while (*ctx->scanner->curptr == ';') {
pj_str_t pname, pvalue;
pj_scan_get_char(ctx->scanner);
pjsip_parse_param_imp(ctx->scanner, ctx->pool, &pname, &pvalue, 0);
if (pj_stricmp(&pname, &STR_REFRESHER)==0) {
hdr->refresher = pvalue;
} else {
pjsip_param *param = PJ_POOL_ALLOC_T(ctx->pool, pjsip_param);
param->name = pname;
param->value = pvalue;
pj_list_push_back(&hdr->other_param, param);
}
}
pjsip_parse_end_hdr_imp( ctx->scanner );
return (pjsip_hdr*)hdr;
}
/*
* Parse Replaces header.
*/
static pjsip_hdr *parse_hdr_replaces(pjsip_parse_ctx *ctx)
{
pjsip_replaces_hdr *hdr = pjsip_replaces_hdr_create(ctx->pool);
const pj_str_t to_tag = { "to-tag", 6 };
const pj_str_t from_tag = { "from-tag", 8 };
const pj_str_t early_only_tag = { "early-only", 10 };
/*pj_scan_get(ctx->scanner, &pjsip_TOKEN_SPEC, &hdr->call_id);*/
/* Get Call-ID (until ';' is found). using pjsip_TOKEN_SPEC doesn't work
* because it stops parsing when '@' character is found.
*/
pj_scan_get_until_ch(ctx->scanner, ';', &hdr->call_id);
while (*ctx->scanner->curptr == ';') {
pj_str_t pname, pvalue;
pj_scan_get_char(ctx->scanner);
pjsip_parse_param_imp(ctx->scanner, ctx->pool, &pname, &pvalue, 0);
if (pj_stricmp(&pname, &to_tag)==0) {
hdr->to_tag = pvalue;
} else if (pj_stricmp(&pname, &from_tag)==0) {
hdr->from_tag = pvalue;
} else if (pj_stricmp(&pname, &early_only_tag)==0) {
hdr->early_only = PJ_TRUE;
} else {
pjsip_param *param = PJ_POOL_ALLOC_T(ctx->pool, pjsip_param);
param->name = pname;
param->value = pvalue;
pj_list_push_back(&hdr->other_param, param);
}
}
pjsip_parse_end_hdr_imp( ctx->scanner );
return (pjsip_hdr*)hdr;
}
static void parse_digest_credential( pj_scanner *scanner, pj_pool_t *pool,
pjsip_digest_credential *cred)
{
pj_list_init(&cred->other_param);
for (;;) {
pj_str_t name, value;
pjsip_parse_param_imp(scanner, pool, &name, &value,
PJSIP_PARSE_REMOVE_QUOTE);
if (!pj_stricmp(&name, &pjsip_USERNAME_STR)) {
cred->username = value;
} else if (!pj_stricmp(&name, &pjsip_REALM_STR)) {
cred->realm = value;
} else if (!pj_stricmp(&name, &pjsip_NONCE_STR)) {
cred->nonce = value;
} else if (!pj_stricmp(&name, &pjsip_URI_STR)) {
cred->uri = value;
} else if (!pj_stricmp(&name, &pjsip_RESPONSE_STR)) {
cred->response = value;
} else if (!pj_stricmp(&name, &pjsip_ALGORITHM_STR)) {
cred->algorithm = value;
} else if (!pj_stricmp(&name, &pjsip_CNONCE_STR)) {
cred->cnonce = value;
} else if (!pj_stricmp(&name, &pjsip_OPAQUE_STR)) {
cred->opaque = value;
} else if (!pj_stricmp(&name, &pjsip_QOP_STR)) {
cred->qop = value;
} else if (!pj_stricmp(&name, &pjsip_NC_STR)) {
cred->nc = value;
} else {
pjsip_param *p = PJ_POOL_ALLOC_T(pool, pjsip_param);
p->name = name;
p->value = value;
pj_list_insert_before(&cred->other_param, p);
}
/* Eat comma */
if (!pj_scan_is_eof(scanner) && *scanner->curptr == ',')
pj_scan_get_char(scanner);
else
break;
}
}
pjsip_hdr* parse_hdr_session_expires(pjsip_parse_ctx* ctx)
{
pj_pool_t* pool = ctx->pool;
pj_scanner* scanner = ctx->scanner;
pjsip_session_expires_hdr* hdr = pjsip_session_expires_hdr_create(pool);
const pjsip_parser_const_t* pc = pjsip_parser_const();
// Parse the expiry number
pj_str_t int_str;
pj_scan_get(scanner, &pc->pjsip_DIGIT_SPEC, &int_str);
hdr->expires = pj_strtoul(&int_str);
pj_scan_skip_whitespace(scanner);
// Parse the rest of the params, looking for the refresher param
while (*scanner->curptr == ';')
{
// Consume the ';'.
pj_scan_get_char(scanner);
pj_scan_skip_whitespace(scanner);
// Parse the param.
pj_str_t name;
pj_str_t value;
pjsip_parse_param_imp(scanner, pool, &name, &value,
PJSIP_PARSE_REMOVE_QUOTE);
if (!pj_stricmp2(&name, "refresher"))
{
if (!pj_stricmp2(&value, "uac"))
{
hdr->refresher = SESSION_REFRESHER_UAC;
}
else if (!pj_stricmp2(&value, "uas"))
{
hdr->refresher = SESSION_REFRESHER_UAS;
}
else
{
PJ_THROW(PJSIP_SYN_ERR_EXCEPTION); // LCOV_EXCL_LINE
}
}
else
{
pjsip_param* param = PJ_POOL_ALLOC_T(pool, pjsip_param);
param->name = name;
param->value = value;
pj_list_insert_before(&hdr->other_param, param);
}
}
// We're done parsing this header.
pjsip_parse_end_hdr_imp(scanner);
return (pjsip_hdr*)hdr;
}
pjsip_hdr* parse_hdr_p_charging_function_addresses(pjsip_parse_ctx* ctx)
{
// The P-Charging-Function-Addresses header has the following ABNF:
//
// P-Charging-Addr = "P-Charging-Function-Addresses" HCOLON
// charge-addr-params
// *(SEMI charge-addr-params)
// charge-addr-params = ccf / ecf / generic-param
// ccf = "ccf" EQUAL gen-value
// ecf = "ecf" EQUAL gen-value
//
// Where the ccf and ecf elements may be repeated to specify backup CDFs
// for redundancy.
pj_pool_t* pool = ctx->pool;
pj_scanner* scanner = ctx->scanner;
pjsip_p_c_f_a_hdr* hdr = pjsip_p_c_f_a_hdr_create(pool);
pj_str_t name;
pj_str_t value;
pjsip_param *param;
for (;;) {
pjsip_parse_param_imp(scanner, pool, &name, &value,
PJSIP_PARSE_REMOVE_QUOTE);
param = PJ_POOL_ALLOC_T(pool, pjsip_param);
param->name = name;
param->value = value;
if (!pj_stricmp2(&name, "ccf")) {
pj_list_insert_before(&hdr->ccf, param);
} else if (!pj_stricmp2(&name, "ecf")) {
pj_list_insert_before(&hdr->ecf, param);
} else {
pj_list_insert_before(&hdr->other_param, param);
}
// We might need to swallow the ';'.
if (!pj_scan_is_eof(scanner) && *scanner->curptr == ';') {
pj_scan_get_char(scanner);
}
// If we're EOF or looking at a newline, we're done.
pj_scan_skip_whitespace(scanner);
if (pj_scan_is_eof(scanner) ||
(*scanner->curptr == '\r') ||
(*scanner->curptr == '\n')) {
break;
}
}
// We're done parsing this header.
pjsip_parse_end_hdr_imp(scanner);
return (pjsip_hdr*)hdr;
}
pjsip_hdr* parse_hdr_reject_contact(pjsip_parse_ctx* ctx)
{
// The Reject-Contact header has the following ABNF:
//
// Reject-Contact = ("Reject-Contact" / "j") HCOLON rc-value
// *(COMMA rc-value)
// rc-value = "*" *(SEMI rc-params)
// rc-params = feature-param / generic-param
//
// But we allow any value for the header (not just *).
pj_pool_t* pool = ctx->pool;
pj_scanner* scanner = ctx->scanner;
const pjsip_parser_const_t* pc = pjsip_parser_const();
pjsip_reject_contact_hdr* hdr = pjsip_reject_contact_hdr_create(pool);
pj_str_t name;
pj_str_t value;
pjsip_param *param;
// Read and ignore the value.
pj_str_t header_value;
pj_scan_get(scanner, &pc->pjsip_TOKEN_SPEC, &header_value);
for (;;)
{
// We might need to swallow the ';'.
if (!pj_scan_is_eof(scanner) && *scanner->curptr == ';')
{
pj_scan_get_char(scanner);
}
pjsip_parse_param_imp(scanner, pool, &name, &value, 0);
param = PJ_POOL_ALLOC_T(pool, pjsip_param);
param->name = name;
param->value = value;
pj_list_insert_before(&hdr->feature_set, param);
// If we're EOF or looking at a newline, we're done.
pj_scan_skip_whitespace(scanner);
if (pj_scan_is_eof(scanner) ||
(*scanner->curptr == '\r') ||
(*scanner->curptr == '\n'))
{
break;
}
}
// We're done parsing this header.
pjsip_parse_end_hdr_imp(scanner);
return (pjsip_hdr*)hdr;
}
static void parse_digest_challenge( pj_scanner *scanner, pj_pool_t *pool,
pjsip_digest_challenge *chal)
{
pj_list_init(&chal->other_param);
for (;;) {
pj_str_t name, value;
pjsip_parse_param_imp(scanner, pool, &name, &value,
PJSIP_PARSE_REMOVE_QUOTE);
if (!pj_stricmp(&name, &pjsip_REALM_STR)) {
chal->realm = value;
} else if (!pj_stricmp(&name, &pjsip_DOMAIN_STR)) {
chal->domain = value;
} else if (!pj_stricmp(&name, &pjsip_NONCE_STR)) {
chal->nonce = value;
} else if (!pj_stricmp(&name, &pjsip_OPAQUE_STR)) {
chal->opaque = value;
} else if (!pj_stricmp(&name, &pjsip_STALE_STR)) {
if (!pj_stricmp(&value, &pjsip_TRUE_STR) ||
!pj_stricmp(&value, &pjsip_QUOTED_TRUE_STR))
{
chal->stale = 1;
}
} else if (!pj_stricmp(&name, &pjsip_ALGORITHM_STR)) {
chal->algorithm = value;
} else if (!pj_stricmp(&name, &pjsip_QOP_STR)) {
chal->qop = value;
} else {
pjsip_param *p = PJ_POOL_ALLOC_T(pool, pjsip_param);
p->name = name;
p->value = value;
pj_list_insert_before(&chal->other_param, p);
}
/* Eat comma */
if (!pj_scan_is_eof(scanner) && *scanner->curptr == ',')
pj_scan_get_char(scanner);
else
break;
}
}
/// Custom parser for Service-Route header. This is registered with PJSIP when
/// we initialize the stack.
pjsip_hdr* parse_hdr_service_route(pjsip_parse_ctx *ctx)
{
// The Service-Route header is a comma separated list of name-addrs
// so we parse it to multiple header structures, using the pjsip_route_hdr
// structure for each. Note that Service-Route may have parameters
// after the name-addr.
pjsip_route_hdr *first = NULL;
pj_scanner *scanner = ctx->scanner;
do
{
pjsip_route_hdr *hdr = identity_hdr_create(ctx->pool, STR_SERVICE_ROUTE);
if (!first)
{
first = hdr;
}
else
{
pj_list_insert_before(first, hdr);
}
pjsip_name_addr *temp = pjsip_parse_name_addr_imp(scanner, ctx->pool);
pj_memcpy(&hdr->name_addr, temp, sizeof(*temp));
while (*scanner->curptr == ';')
{
pj_scan_get_char(scanner); // Consume ;
pjsip_param *p = PJ_POOL_ALLOC_T(ctx->pool, pjsip_param);
pjsip_parse_param_imp(scanner, ctx->pool, &p->name, &p->value, 0);
pj_list_insert_before(&hdr->other_param, p);
}
if (*scanner->curptr == ',')
{
pj_scan_get_char(scanner);
}
else
{
break;
}
} while (1);
pjsip_parse_end_hdr_imp(scanner);
return (pjsip_hdr*)first;
}
/// Custom parser for P-Associated-URI header. This is registered with PJSIP when
/// we initialize the stack.
pjsip_hdr* parse_hdr_p_associated_uri(pjsip_parse_ctx *ctx)
{
// The P-Associated-URI header is a comma separated list of name-addrs
// with optional parameters, so we parse it to multiple header structures,
// using the pjsip_route_hdr structure for each.
pjsip_route_hdr *first = NULL;
pj_scanner *scanner = ctx->scanner;
do
{
pjsip_route_hdr *hdr = identity_hdr_create(ctx->pool, STR_P_ASSOCIATED_URI);
if (!first)
{
first = hdr;
}
else
{
pj_list_insert_before(first, hdr);
}
pjsip_name_addr *temp = pjsip_parse_name_addr_imp(scanner, ctx->pool);
pj_memcpy(&hdr->name_addr, temp, sizeof(*temp));
while (*scanner->curptr == ';')
{
pj_scan_get_char(scanner); // Consume ;
pjsip_param *p = PJ_POOL_ALLOC_T(ctx->pool, pjsip_param);
pjsip_parse_param_imp(scanner, ctx->pool, &p->name, &p->value, 0);
pj_list_insert_before(&hdr->other_param, p);
}
if (*scanner->curptr == ',')
{
pj_scan_get_char(scanner);
}
else
{
break;
}
} while (1);
pjsip_parse_end_hdr_imp(scanner);
return (pjsip_hdr*)first;
}
/// Custom parser for P-Served-User. This is registered with PJSIP when
/// we initialize the stack.
pjsip_hdr* parse_hdr_p_served_user(pjsip_parse_ctx *ctx)
{
// The P-Served-User header is a single name-addr followed by optional
// parameters, so we parse it to a single pjsip_route_hdr structure.
pj_scanner *scanner = ctx->scanner;
pjsip_route_hdr *hdr = identity_hdr_create(ctx->pool, STR_P_SERVED_USER);
pjsip_name_addr *temp = pjsip_parse_name_addr_imp(scanner, ctx->pool);
pj_memcpy(&hdr->name_addr, temp, sizeof(*temp));
while (*scanner->curptr == ';')
{
pj_scan_get_char(scanner); // Consume ;
pjsip_param *p = PJ_POOL_ALLOC_T(ctx->pool, pjsip_param);
pjsip_parse_param_imp(scanner, ctx->pool, &p->name, &p->value, 0);
pj_list_insert_before(&hdr->other_param, p);
}
pjsip_parse_end_hdr_imp(scanner);
return (pjsip_hdr*)hdr;
}
/*
* Parse Min-SE header.
*/
static pjsip_hdr *parse_hdr_min_se(pjsip_parse_ctx *ctx)
{
pjsip_min_se_hdr *hdr = pjsip_min_se_hdr_create(ctx->pool);
const pjsip_parser_const_t *pc = pjsip_parser_const();
pj_str_t token;
pj_scan_get(ctx->scanner, &pc->pjsip_DIGIT_SPEC, &token);
hdr->min_se = pj_strtoul(&token);
while (*ctx->scanner->curptr == ';') {
pj_str_t pname, pvalue;
pjsip_param *param = PJ_POOL_ALLOC_T(ctx->pool, pjsip_param);
pj_scan_get_char(ctx->scanner);
pjsip_parse_param_imp(ctx->scanner, ctx->pool, &pname, &pvalue, 0);
param->name = pname;
param->value = pvalue;
pj_list_push_back(&hdr->other_param, param);
}
pjsip_parse_end_hdr_imp( ctx->scanner );
return (pjsip_hdr*)hdr;
}
/*
* Parse Subscription-State header.
*/
static pjsip_hdr* parse_hdr_sub_state( pjsip_parse_ctx *ctx )
{
pjsip_sub_state_hdr *hdr = pjsip_sub_state_hdr_create(ctx->pool);
const pj_str_t reason = { "reason", 6 },
expires = { "expires", 7 },
retry_after = { "retry-after", 11 };
const pjsip_parser_const_t *pc = pjsip_parser_const();
pj_scan_get(ctx->scanner, &pc->pjsip_TOKEN_SPEC, &hdr->sub_state);
while (*ctx->scanner->curptr == ';') {
pj_str_t pname, pvalue;
pj_scan_get_char(ctx->scanner);
pjsip_parse_param_imp(ctx->scanner, ctx->pool, &pname, &pvalue, 0);
if (pj_stricmp(&pname, &reason) == 0) {
hdr->reason_param = pvalue;
} else if (pj_stricmp(&pname, &expires) == 0) {
hdr->expires_param = pj_strtoul(&pvalue);
} else if (pj_stricmp(&pname, &retry_after) == 0) {
hdr->retry_after = pj_strtoul(&pvalue);
} else {
pjsip_param *param = PJ_POOL_ALLOC_T(ctx->pool, pjsip_param);
param->name = pname;
param->value = pvalue;
pj_list_push_back(&hdr->other_param, param);
}
}
pjsip_parse_end_hdr_imp( ctx->scanner );
return (pjsip_hdr*)hdr;
}
pjsip_hdr* parse_hdr_p_charging_vector(pjsip_parse_ctx* ctx)
{
// The P-Charging-Vector header has the following ABNF:
//
// P-Charging-Vector = "P-Charging-Vector" HCOLON icid-value
// *(SEMI charge-params)
// charge-params = icid-gen-addr / orig-ioi /
// term-ioi / generic-param
// icid-value = "icid-value" EQUAL gen-value
// icid-gen-addr = "icid-generated-at" EQUAL host
// orig-ioi = "orig-ioi" EQUAL gen-value
// term-ioi = "term-ioi" EQUAL gen-value
pj_pool_t* pool = ctx->pool;
pj_scanner* scanner = ctx->scanner;
pjsip_p_c_v_hdr* hdr = pjsip_p_c_v_hdr_create(pool);
pj_str_t name;
pj_str_t value;
// Parse the required icid-value parameter first.
pjsip_parse_param_imp(scanner, pool, &name, &value,
PJSIP_PARSE_REMOVE_QUOTE);
if (!pj_stricmp2(&name, "icid-value")) {
hdr->icid = value;
} else {
PJ_THROW(PJSIP_SYN_ERR_EXCEPTION); // LCOV_EXCL_LINE
}
for (;;) {
pj_scan_skip_whitespace(scanner);
// If we just parsed the last parameter we will have reached the end of the
// header and have nothing more to do.
if (pj_scan_is_eof(scanner) ||
(*scanner->curptr == '\r') ||
(*scanner->curptr == '\n')) {
break;
}
// There's more content in the header so the next character must be the ";"
// separator.
if (*scanner->curptr == ';') {
pj_scan_get_char(scanner);
} else {
PJ_THROW(PJSIP_SYN_ERR_EXCEPTION); // LCOV_EXCL_LINE
}
pjsip_parse_param_imp(scanner, pool, &name, &value,
PJSIP_PARSE_REMOVE_QUOTE);
if (!pj_stricmp2(&name, "orig-ioi")) {
hdr->orig_ioi = value;
} else if (!pj_stricmp2(&name, "term-ioi")) {
hdr->term_ioi = value;
} else if (!pj_stricmp2(&name, "icid-generated-at")) {
hdr->icid_gen_addr = value;
} else {
pjsip_param *param = PJ_POOL_ALLOC_T(pool, pjsip_param);
param->name = name;
param->value = value;
pj_list_insert_before(&hdr->other_param, param);
}
}
// We're done parsing this header.
pjsip_parse_end_hdr_imp(scanner);
return (pjsip_hdr*)hdr;
}
